Enhanced desalination using carboxylated carbon nanotube immobilized membranes

Bhadra, Madhuleena; Roy, Sagar; Mitra, Somenath

doi:10.1016/j.seppur.2013.10.020

Cited by 70 publications

(41 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time the presence of polar functional groups such as epoxy, hydroxyl and carboxyl on GO favorably altered the membrane-water vapor interactions that helps improving the overall vapor permeation rates. This is in line with previous published studies with oxidized carbon nanotubes [13,14] and nanodiamonds [9]. The presence of nanopores in GO and the fact that the carbon atoms adjacent to the pores are preferentially hydroxylated and carboxylated [37] also aid in enhancing flux via selective sieving of pure water with respect to salt water clusters [26].…”

Section: Proposed Mechanismsupporting

confidence: 91%

“…The synthesis of free-standing and silicon-supported vertically aligned CNTs membranes have been reported for reverse osmosis (RO) [11], and self-supporting bucky-paper membranes as well as interfacially polymerized bucky-papers have been used in MD [12]. Recently we have demonstrated the immobilization of nano carbons in different types of polymeric membranes to alter the solute-membrane interactions [13,14]. The physicochemical properties of nanocarbons play important roles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Desalination across a graphene oxide membrane via direct contact membrane distillation

2016

Self Cite

View full text Add to dashboard Cite

Section: Proposed Mechanismsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Desalination across a graphene oxide membrane via direct contact membrane distillation

2016

Self Cite

View full text Add to dashboard Cite

“…In a similar study, Bhadra et al [166] reported that carboxylated carbon nanotube incorporated PP membrane had a higher permeability and water flux in comparison with the carbon nanotube incorporated and unmodified PP membranes. Carboxylation improved interactions between the nanotubes and polar water vapor molecules, resulting in enhanced desalination efficiency (Fig.…”

Section: Figmentioning

confidence: 89%

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Baghbanzadeh

Rana

Lan

et al. 2015

Separation & Purification Reviews

View full text Add to dashboard Cite

Separation using selective polymeric membranes has been well-established as an energy-efficient and cost-effective technology in water treatment and many other applications involving aqueous solutions. However, limited chemical, thermal, and mechanical resistances besides their tendency to fouling and inadequate pure water flux may often restrict their applications. To this end, inorganic materials as additives have been demonstrated to be able to enhance chemical, thermal, and fouling membrane resistances, which demonstrate their great potential for developing novel membranes by using them as additives in polymer matrices. Considering the excellent characteristics of the nano-sized particles, this study reviews the effects of inorganic nanoadditives on properties and performance of polymer/nanoparticle composite membranes. It has been demonstrated that using nanomaterials in a polymer matrix could enhance the mechanical strength and stiffness, wettability, selectivity, water permeability, and antifouling characteristics of the host polymer. Abbreviation ALDAtomic Layer Deposition PAN Polyacrylonitrile AOP Advanced Oxidation Process PAS Polyarylsulfone APTS 3-Aminopropyltriethoxysilane PCTE Polycarbonate BET Brunauer Emmett Teller PDMS Polydimethylsiloxane BP Bucky-Paper PEI Polyethyleneimine BPPO Brominated Poly(phenylene oxide) PES Polyethersulfone BSA Bovine serum albumin PI Polyimide CA Cellulose acetate PMMA Poly(methyl methacrylate) Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t CNIM Carbon Nanotube Immobilized Membrane PP Polypropylene CNT Carbon Nanotube PSf Polysulfone CTA Cellulose triacetate PTFE Polytetrafluoroethylene DCMD Direct Contact Membrane Distillation PV Pervaporation DLS Dynamic Light Scattering PVA Poly(vinyl alcohol) FO Forward Osmosis PVC Polyvinyl chloride GO Graphene Oxide PVDF Polyvinylidene fluoride ICP Internal Concentration Polarization RO Reverse Osmosis LEP Liquid Entry Pressure SDS Sodium dodecyl sulfate MD Membrane Distillation SEM Scanning Electron Microscopy Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t MF Microfiltration SGMD Sweep Gas Membrane Distillation MWCNT Multi-Walled Carbon Nanotube SPES SulfonatedPolyethersulfone NF Nanofiltration TMOS Tetramethylorthosilicate NP Nanoparticle TMP Transmembrane Pressure PA Polyamide UF Ultrafiltration PAI Poly(amide-imide) VMD Vacuum Membrane Distillation 1-IntroductionThe increase in water demand for domestic, agricultural and industrial uses resulted in much attention toward water and waste water treatment technologies during the last few decades. The water demand is predicted to increase by 50% over the next few decades [1]. Membrane filtration, advanced oxidation processes (AOPs), and UV irradiation are among the processes that Downloaded by [Deakin University Library] at 01:21 12 August 2015A c c e p t e d M a n u s c r i p t have been used for this purpose [2] and membrane filtration is considered to be one of the most...

show abstract

“…To this end, different nanomaterials such as SiO 2 , carbon nanotubes (CNTs), TiO 2 , Al 2 O 3 , CaCO 3 , Ag, and nanozeolites have been used [5,16,[18][19][20][21][22][23]. Nonetheless, very little information is available on the effects of different nanoparticles on the properties and performance of MD membranes even though some of the pioneering works have shown great potential of nanocomposite membranes for MD [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effects of hydrophilic CuO nanoparticles on properties and performance of PVDF VMD membranes

et al. 2015

View full text Add to dashboard Cite

Enhanced desalination using carboxylated carbon nanotube immobilized membranes

Cited by 70 publications

References 22 publications

Desalination across a graphene oxide membrane via direct contact membrane distillation

Desalination across a graphene oxide membrane via direct contact membrane distillation

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Effects of hydrophilic CuO nanoparticles on properties and performance of PVDF VMD membranes

Contact Info

Product

Resources

About